Lien trial and fee schedule (California)

Scenario.
1 Defense tries lien. Mostly outside mpn and value of service. Some treatment found invalid per mtus. Say lien is $15 000 and $5 000 services not allowed.
Question
1. How does judge determine fee schedule on remaining $10 000?
1 Defense tries lien. Mostly outside mpn and value of service. Some treatment found invalid per mtus. Say lien is $15 000 and $5 000 services not allowed.
Question
1. How does judge determine fee schedule on remaining $10 000?